Key data

  • Client: Landestalsperrenverwaltung des Freistaates Sachsen, Betrieb Oberes Elbtal
  • Planning: 2005 - 2007
  • Construction: seit 2013
  • Scope of planning:

    Project design
    Structural design
    Hydraulic calculations
    Site investigation
    Assessment of old mines
    Environmental planning and design
    Support in relation to hydraulic model testing
    (as part of an engineering consortium) 

Flood control reservoir Niederpoebel, Ore Mountains
Preventive flood protection

The Niederpöbel flood control reservoir was constructed to protect the communities on the Red Weisseritz river in the Eastern Erz Mountains of Saxony. The reservoir’s retaining structure was designed as a rock-fill embankment dam with a bitumen-sealed core. The basin, created as an ecological, generally passable dry basin, will only fill with water during a 10-year flood event (HQ10). Inros Lackner’s role in the project included the planning and design of water management and construction-related aspects, and managing the planning permission process. The basin is located in an ecologically sensitive area with natural flora/fauna habitats, nature and landscape protection areas and Section 26 biotopes.

Flood retention reservoir – main statistics:

  • Retention capacity:  approx. 1.14 million m3
  • Dam height above base: approx. 28.5 m
  • Crest length: approx. 185 m
  • Length/width retention area: 1.15 km/~140 m
  • Catchment area: 12.1 km2
  • Designed capacity in case of flooding: 10.9 m3/s

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